The climate change debate continues.

[nomadpete]

1 hour ago, spacesailor said:

In a cool/cold  night, RC air-conditioners will put out cold air , as the inside gets the heating

I can walk outside to put my hand in front of the AC to feel the cold/heat while inside ,

The opposite happens. 

spacesailor

Yes Spacey.  It is a heat pump.

In cold times it pumps warm air inside. In hot times it pumps warm air outside. There is no such thing as 'cold' . Ther is only heat, of varoius levels

Edited 13 hours ago by nomadpete

[old man emu]

2 hours ago, onetrack said:

produce more power as they get hotter.

I would suggest that the heating of the surface adds energy to the electrons in the solar cells, making it a tad easier for them to escape from the molecules that are attached to. Therefore more electrons off means more electrons (electricity). At night the cells might be absorbing heat from the atmosphere, thereby cooling it.

[octave]

Yes, Heat Reduces Solar Panel Output. But Not Enough To Worry About

[nomadpete]

Basic rule...

The higher the temp, the lower a semiconductor's efficiency.

[pmccarthy]

Same with tram conductors.

[old man emu]

1 hour ago, pmccarthy said:

Same with tram conductors.

Yeah. Back in the day when it got too hot they punched your ticket in the wrong place.